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The Effect of Averaging, Sampling, and Time Series Length on Wind Power Density Estimations by Gross, Markus; Magar, Vanesa; Peña, Alfredo is a Environmental Science article available to read on EtoBox.

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The Wind Power Density (WPD) is widely used for wind resource characterization. However, there is a significant level of uncertainty associated with its estimation. Here, we analyze the effect of sampling frequencies, averaging periods, and the length of time series on the WPD estimation. We perform this analysis using four approaches. First, we analytically evaluate the impact of assuming that the WPD can simply be computed from the cube of the mean wind speed. Second, the wind speed time series from two meteorological stations are used to assess the effect of sampling and averaging on the WPD. Third, we use numerical weather prediction model outputs and observational data to demonstrate that the error in the WPD estimate is also dependent on the length of the time series. Finally, artificial time series are generated to control the characteristics of the wind speed distribution, and we analyze the sensitivity of the WPD to variations of these characteristics. The WPD estimation error is expressed mathematically using a numerical-data-driven model. This numerical-data-driven model can then be used to predict the WPD estimation errors at other sites. We demonstrate that substantial

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Author

Gross, Markus; Magar, Vanesa; Peña, Alfredo

Publisher

MDPI AG; MDPI Open Access Publishing; Basel: MDPI, 2009- (ISSN 2071-1050)

Published

2020

Language

EN

Field

Environmental Science (Social Sciences)